Question
Carl, Xavier and Paul have some pens. The ratios of their pens are as follows:

Carl : (Carl + Xavier + Paul) = 1 : 4
Xavier : (Carl + Paul) = 1 : 4

Paul has 77 pens more than Xavier. In the end, Paul gives away all he has to Xavier and Carl so that both Xavier and Carl end up with the same number of pens, how many pens has Carl received from Paul?
4 m

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Carl, Xavier and Paul have some pens. The ratios of their pens are as follows:

Carl : (Carl + Xavier + Paul) = 1 : 4
Xavier : (Carl + Paul) = 1 : 4

Paul has 77 pens more than Xavier. In the end, Paul gives away all he has to Xavier and Carl so that both Xavier and Carl end up with the same number of pens, how many pens has Carl received from Paul?